Coefficients of longitudinal and transversal dispersion of mass on the grates for waste incineration systems

• Autorzy: Jaworski T. J.
• Języki publikacji: EN

Abstrakty

EN

The paper describes the methods of evaluating longitudinal and transversal dispersion coefficients for forward moving and reciprocating grates. The methods are based on both theoretical and dimensional analyses. The values of the coefficients obtained theoretically at various parameters of material (density, particle diameter) and various parameters of grate movement (grate bars velocity, inclination angle) were verified using two methods. The first method is based on the analysis of the Peclet number calculated from the residence time distribution. The second one is based on the comparison of the concentration field determined experimentally with the values obtained by mathematical method. Both methods give satisfactory results.

Słowa kluczowe

EN

waste incineration; dispersion coefficients

PL

spalanie odpadów; współczynniki dyspersji

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2010
• Tom: Vol. 36, nr 1
• Strony: 95--102
• Opis fizyczny: bibliogr. 7 poz.

Twórcy

autor

Jaworski T. J.

• The Department of Technologies and Installations for Waste Management, the Faculty of Energy and Environmental Engineering, Silesian University of Technology, ul. Konarskiego 18, 44-100 Gliwice,

Bibliografia

• [1] JAWORSKI T.J., Modelling of mass transfer process of a fuel layer and the grate of waste incineration furnance, Second International Symposium on Energy from Biomass and Waste, File:053.CISA, Environmental Sanitary Engineering Centre, Venice, Italy, November 2008.
• [2] SZARAWARA J., SKRZYPEK J., GAWDZIK A., Podstawy inżynierii reaktorów chemicznych, WNT, Warszawa, 1991.
• [3] KASPRZAK W., Analiza wymiarowa, algorytmiczne procedury obsługi eksperymentu, WNT, Warszawa, 1988.
• [4] LEVENSPIEL O., Chemical Reaction Engineering, John Wiley & Sons Verlag, 3 Auflage, 1991.
• [5] JAWORSKI T., Residence time behaviour of material on the grate in waste management device, Archivum Combustionis, 2003, Vol. 23, No. 1, 2, 81–89.
• [6] GRZYMKOWSKI R., KAPUSTA A., SŁOTA D., Laboratorium komputerowe: Mathematica, Wydawnictwo Politechniki Śląskiej, Gliwice, 1995.
• [7] BORZĘCKI D., Badanie współczynników dyspersji wzdłużnej i poprzecznej na rusztach posuwistych i posuwisto-zwrotnych urządzeń do termicznego przekształcania odpadów, MSc thesis, Politechnika Śląska, 2008.